Functional but unsatisfactory products.

I recently purchased two products from FirstShop. A TufLuv MacBook cover and DELL KM7321W keyboard RF Wireless + Bluetooth Mouse. Both products were functional but had disappointing defects or features. The laptop cover does not fit the laptop properly. It's lower cover does not clip-on to the bottom and comes off partially whenever I pick up the laptop. Fortunately, my laptop remains on my desk most of the time and this only bothers me occasionally so I've decided not to return it for a refund. The Dell keyboard & mouse set, however, I will return. The mouse makes such an annoyingly loud noise I wouldn't be able tolerate it, especially since it came at a cost of R1600. I really can't understand why Dell still manufactures such noisy clicky mice and calls them premium? The multi-device connectivity is exactly what I needed for my work space and but this mouse just doesn't work for me. I'll have to find a similar product with a quieter one.